Figure 2: Correlation between Uphos/Ucr and 25-hydroxyvitamin D. Line shows the least-squares line. Left panel, data for all subjects. There is no correlation between Uphos/Ucr and 25-hydroxyvitamin D (n=58, r2=0.006, p is ns). Right panel, subjects with 25-hydroxyvitamin D <80 nmol/L. There is no correlation (n=17, r2=0.000, p is ns).